Water purification equipment

Abstract

The utility model relates to the technical field of water purification, particularly provides water purification equipment, and aims to solve the problem that the use experience of a user is influenced by the problems of high cost, complicated pipeline connection and the like of the existing water purification equipment. The water purification equipment comprises a reverse osmosis membrane filter element, a water inlet main path and a cleaning assembly, and the water inlet end and the water outlet end of a first cleaning module communicate with the wastewater end of the reverse osmosis membrane filter element and the water inlet end of the reverse osmosis membrane filter element correspondingly; the water inlet end and the water outlet end of the second cleaning module are respectively communicated with the pure water end of the reverse osmosis membrane filter element and the water inlet end of the reverse osmosis membrane filter element; and the water purification equipment can drive liquid in the cleaning loop to circularly flow. According to the water purification equipment, a cleaning loop can be formed to circularly wash the reverse osmosis membrane filter element, and no additional circulating pipe is needed, so that pipeline connection can be simplified, the cost of the water purification equipment is reduced, pure water backflow and wastewater backflow can be realized after cleaning is finished, a pure water backflow pipe and a wastewater backflow pipe are not needed, the pipeline connection is further simplified, and the cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to water purification technical field, specifically provide a water purification equipment. BACKGROUND

[0002] With the improvement of people's living standards, people's demand for drinking water is also getting higher and higher. Water purification equipment such as water purification machine and pipeline machine gradually becomes an essential drinking water facility in people's daily life.

[0003] After a long time of use, the dirt in the water will adhere to the reverse osmosis membrane filter element, affecting the water production rate of the water purification equipment, thereby affecting the service life of the reverse osmosis membrane filter element. After a period of use of the water purification equipment, cleaning the reverse osmosis membrane filter element with a cleaning agent can remove the dirt adhering to the surface of the reverse osmosis membrane filter element to some extent, thereby prolonging the service life of the reverse osmosis membrane filter element.

[0004] However, the existing water purification equipment usually has a cleaning module connected in parallel to the water inlet main line, i.e., the water inlet end and the water outlet end of the cleaning module are both connected to the water inlet main line. In order to improve the cleaning effect of the cleaning liquid on the reverse osmosis membrane filter element, a circulating pipe is usually additionally provided to connect the water inlet end of the reverse osmosis membrane filter element, the wastewater end of the reverse osmosis membrane filter element, and the cleaning module in sequence to form a cleaning loop, so that the cleaning liquid can clean the reverse osmosis membrane filter element in a circulating manner. This results in a large number of valves (devices with switching function, such as solenoid valves, mechanical valves, etc.) and pipelines in the water purification equipment, high cost, complex pipeline connection in the water purification equipment, and poor user experience. SUMMARY

[0005] The utility model aims to at least solve the above technical problems to some extent, i.e., to at least solve the problem of high cost, complex pipeline connection, and poor user experience of the existing water purification equipment to some extent.

[0006] In a first aspect, the utility model provides a kind of water purification equipment, which comprises: reverse osmosis membrane filter element;Water inlet main road, which is communicated with the water inlet end of the reverse osmosis membrane filter element and is used to supply water to the reverse osmosis membrane filter element;And cleaning assembly, which includes first cleaning module and second cleaning module, the first cleaning module is used to store first cleaning agent, the water inlet end of the first cleaning module is communicated with the wastewater end of the reverse osmosis membrane filter element, the water outlet end of the first cleaning module is communicated with the water inlet end of the reverse osmosis membrane filter element, the second cleaning module is used to store second cleaning agent, the water inlet end of the second cleaning module is communicated with the pure water end of the reverse osmosis membrane filter element, and the water outlet end of the second cleaning module is communicated with the water inlet end of the reverse osmosis membrane filter element;Wherein, the water inlet end of the reverse osmosis membrane filter element and the first cleaning module are sequentially communicated to form a cleaning loop, and the water purification equipment is arranged to be able to drive the liquid circulation flow in the cleaning loop.

[0007] In the above preferred technical solutions for water purification equipment, the first cleaning module includes a first cleaning pipe, a first cleaning valve disposed on the first cleaning pipe, and a first cleaning agent storage member for storing a first cleaning agent. The first cleaning valve is located at the upstream end of the first cleaning agent storage member. The water inlet end of the first cleaning pipe is communicated with the wastewater end of the reverse osmosis membrane filter element, and the water outlet end of the first cleaning pipe is communicated with the water inlet main road. Additionally or alternatively, the second cleaning module includes a second cleaning pipe, a second cleaning valve disposed on the second cleaning pipe, and a second cleaning agent storage member for storing a second cleaning agent. The second cleaning valve is located at the upstream end of the second cleaning agent storage member. The water inlet end of the second cleaning pipe is communicated with the pure water end of the reverse osmosis membrane filter element, and the water outlet end of the second cleaning pipe is communicated with the water inlet main road.

[0008] In the above preferred technical solutions for water purification equipment, the water purification equipment further includes a first check member disposed on the first cleaning pipe and used to prevent water in the water inlet main road from flowing backward into the first cleaning agent storage member. Additionally or alternatively, the water purification equipment further includes a second check member disposed on the second cleaning pipe and used to prevent water in the water inlet main road from flowing backward into the second cleaning agent storage member.

[0009] In the above preferred technical solutions for water purification equipment, the water purification equipment includes a booster pump disposed on the water inlet main road. The water outlet end of the first cleaning module is communicated with the water inlet main road and located at the upstream end of the booster pump. The booster pump can drive the liquid in the cleaning loop to circulate and flow.

[0010] In the preferred technical scheme of the water purifying device, the booster pump comprises at least a first voltage level and a second voltage level, and the booster pump is provided with a level adjusting module, which is used to adjust the voltage level of the booster pump to the second voltage level when the water purifying device is in the cleaning mode, wherein the voltage value of the second voltage level is lower than that of the first voltage level.

[0011] In the preferred technical scheme of the water purifying device, the water purifying device further comprises a circulating pump, which is arranged on the first cleaning pipe or the water inlet main line and is used to drive the liquid in the cleaning loop to circulate and flow.

[0012] In the preferred technical scheme of the water purifying device, the circulating pump is arranged on the first cleaning pipe, and the water purifying device further comprises a protection member, which is arranged between the water inlet main line and the circulating pump and can resist the water pressure in the water inlet main line; and / or the water purifying device comprises a booster pump, and the water outlet end of the first cleaning module and / or the water outlet end of the second cleaning module are located at the downstream end of the booster pump.

[0013] In the preferred technical scheme of the water purifying device, the first cleaning agent storage member is arranged to allow the water at the waste water end of the reverse osmosis membrane filter core to flow to the water inlet end of the reverse osmosis membrane filter core when it is in the first working mode and to deliver the first cleaning liquid to the water inlet end of the reverse osmosis membrane filter core when it is in the second working mode; and / or the second cleaning agent storage member is arranged to allow the water at the pure water end of the reverse osmosis membrane filter core to flow to the water inlet end of the reverse osmosis membrane filter core when it is in the first working mode and to deliver the second cleaning liquid to the water inlet end of the reverse osmosis membrane filter core when it is in the second working mode; and / or the first cleaning module has a collection cavity, and the water purifying device is further arranged to collect the dirt in the cleaning loop into the collection cavity.

[0014] In the preferred technical scheme of the water purifying device, the water purifying device further comprises a dirt collection member, which is arranged on the cleaning loop and in which the collection cavity is formed, and the dirt in the cleaning loop can be collected into the collection cavity; or the first cleaning agent storage member has a containing cavity, in which the collection cavity is formed, and the first cleaning agent storage member is arranged to store the first cleaning agent in the containing cavity when it is in the first working state and to collect the dirt in the cleaning loop into the collection cavity when it is in the second working state.

[0015] In the preferred technical solution of the water purification device, the water purification device further comprises a flow control member for controlling the water flow from the wastewater end of the reverse osmosis membrane filter core to the water inlet end of the reverse osmosis membrane filter core; and / or, the water purification device further comprises an auxiliary cleaning member arranged to facilitate the action of the first cleaning agent and / or the second cleaning agent on the dirt on the reverse osmosis membrane filter core to remove the dirt from the reverse osmosis membrane filter core; and / or, the water purification device further comprises a pre-filter unit, the water outlet end of the pre-filter unit is in communication with the water inlet main line, and the water outlet end of the first cleaning module and / or the water outlet end of the second cleaning module is located at the downstream end of the pre-filter unit; and / or, the water purification device further comprises a pure water outlet pipe and a pure water water-using member, and the pure water end of the reverse osmosis membrane filter core is in communication with the pure water water-using member through the pure water outlet pipe.

[0016] In the preferred technical solution, by directly connecting the water inlet end of the first cleaning module to the wastewater end of the reverse osmosis membrane filter core and connecting the water outlet end of the first cleaning module to the water inlet end of the reverse osmosis membrane filter core, the first cleaning module, the water inlet end of the reverse osmosis membrane filter core, and the wastewater end of the reverse osmosis membrane filter core are sequentially connected to form a cleaning loop, which can circulate and flush the reverse osmosis membrane filter core to improve the cleaning effect of the reverse osmosis membrane filter core. Since no additional circulation pipe is needed, the pipe connection can be simplified, and the cost of the water purification device can be reduced. By arranging the second cleaning module to be in communication with the pure water end of the reverse osmosis membrane filter core, the pure water filtered by the reverse osmosis membrane filter core can be used to dissolve the cleaning agent in the second cleaning module, thereby improving the solubility of the cleaning agent. After the cleaning of the second cleaning module is completed, the water at the pure water end of the reverse osmosis membrane filter core can be delivered to the water inlet end of the reverse osmosis membrane filter core, which helps to achieve zero pollution and zero chemical addition during the cleaning process. In addition, the problem of high TDS value of the first cup of water can be solved without the need for an additional pure water return pipe, further simplifying the pipe connection. Furthermore, after the cleaning of the first cleaning module is completed, the water at the wastewater end of the reverse osmosis membrane filter core can be delivered to the water inlet end of the reverse osmosis membrane filter core, thereby facilitating the circulation and flushing of the reverse osmosis membrane filter core, improving the flushing effect, saving water, and greatly improving the user experience.

[0017] Further, by arranging the first check member and the second check member, the water in the water inlet main line can be prevented from flowing back into the first cleaning agent storage member and the second cleaning agent storage member, thereby prolonging the storage time of the cleaning agent and preventing the cleaning agent from caking and crystallizing.

[0018] Further, by adopting the booster pump to drive the liquid circulation flow in the cleaning circuit, the circulation pump can be avoided, thereby further reducing the cost of the water purification equipment, further simplifying the pipeline connection in the water purification equipment, and further reducing the volume of the water purification equipment. By setting the booster pump to at least include a first voltage gear and a second voltage gear, when the water purification equipment is in the cleaning mode, the booster pump can be operated at a lower voltage gear, so that the water pressure of the cleaning liquid in the circulation process is lower. On the one hand, the cleaning liquid can be prevented from penetrating into the pure water end of the reverse osmosis membrane filter element, thereby reducing the chemical residue. On the other hand, the damage of the cleaning liquid to the diaphragm in the booster pump can be avoided, thereby prolonging the service life of the booster pump.

[0019] Further, by setting the circulation pump to drive the liquid circulation flow in the cleaning circuit, the booster pump can be avoided to drive the cleaning liquid to circulate in the cleaning circuit. On the one hand, the damage of the cleaning liquid to the diaphragm in the booster pump can be avoided, thereby prolonging the service life of the booster pump. On the other hand, compared with the form of adopting the booster pump to drive the cleaning liquid to circulate in the cleaning circuit, since there is no high pressure, the cleaning liquid can be prevented from penetrating into the pure water end of the reverse osmosis membrane filter element, thereby not only reducing the chemical residue, but also reducing the damage to the membrane of the reverse osmosis membrane filter element.

[0020] Further, by setting the protection member, the water pressure in the water inlet main circuit can be resisted, and the leakage problem of the circulation pump due to high pressure can be avoided. By connecting the water outlet end of the first cleaning pipe and the water outlet end of the second cleaning pipe with the downstream end of the booster pump, the cleaning liquid flowing out of the first cleaning pipe and / or the second cleaning pipe can be prevented from flowing through the booster pump, thereby avoiding the corrosion of the diaphragm in the booster pump by the cleaning liquid, and prolonging the service life of the booster pump.

[0021] Further, by setting the first cleaning agent storage member to allow the water flowing from the wastewater end of the reverse osmosis membrane filter element to the water inlet end of the reverse osmosis membrane filter element when the first cleaning agent storage member is in the first working mode, and to deliver the cleaning liquid to the reverse osmosis membrane filter element when the first cleaning agent storage member is in the second working mode, on the one hand, when the cleaning agent in the first cleaning agent storage member is not needed to clean the reverse osmosis membrane filter element, the water flowing from the wastewater end of the reverse osmosis membrane filter element to the water inlet end of the reverse osmosis membrane filter element can be allowed, thereby being capable of circulating flushing the reverse osmosis membrane filter element, and improving the flushing efficiency of the reverse osmosis membrane filter element. On the other hand, when the cleaning agent in the first cleaning agent storage member is needed to clean the reverse osmosis membrane filter element, the cleaning liquid can be delivered to the reverse osmosis membrane filter element, thereby being capable of achieving both cleaning and flushing of the reverse osmosis membrane filter element by setting the first cleaning module, thereby further saving the parts of the water purification equipment, and reducing the cost of the water purification equipment.

[0022] Further, by setting the first cleaning module to have the collecting cavity, when the reverse osmosis membrane filter core is cleaned, the dirt cleaned from the reverse osmosis membrane filter core can be collected into the collecting cavity when the cleaning liquid circulates in the cleaning circuit, so that the dirt cleaned is prevented from entering the reverse osmosis membrane filter core again, thereby preventing secondary pollution to the reverse osmosis membrane filter core, and meanwhile, when the reverse osmosis membrane filter core is flushed, the dirt flushed from the reverse osmosis membrane filter core can also be collected into the collecting cavity, thereby improving the flushing effect.

[0023] Further, by setting the flow control member, the water flow from the wastewater end of the reverse osmosis membrane filter core to the water inlet end of the reverse osmosis membrane filter core can be controlled, when the water purification equipment is in the normal water production mode, the water amount of the wastewater after filtered by the reverse osmosis membrane filter core and returned to the water inlet end of the reverse osmosis membrane filter core can be adjusted, thereby controlling the wastewater recovery rate, on one hand, water resource waste caused by too low wastewater recovery rate can be avoided, on the other hand, the service life of the reverse osmosis membrane filter core affected by too high wastewater recovery rate can also be avoided. BRIEF DESCRIPTION OF DRAWINGS

[0024] The preferred embodiments of the present application will be described below in conjunction with the accompanying drawings, in which:

[0025] Figure 1 is a structural schematic view of an embodiment one of the water purification equipment of the present application;

[0026] Figure 2 is a structural schematic view of an embodiment two of the water purification equipment of the present application;

[0027] Figure 3 is a structural schematic view of an embodiment three of the water purification equipment of the present application;

[0028] Figure 4 is a structural schematic view of an embodiment four of the water purification equipment of the present application;

[0029] Figure 5 is a structural schematic view of an embodiment one of the first cleaning agent storage member of the present application;

[0030] Figure 6 is a structural schematic view of an embodiment two of the first cleaning agent storage member of the present application;

[0031] Figure 7 is a structural schematic view of one of the embodiments three of the first cleaning agent storage member of the present application;

[0032] Figure 8 is a structural schematic view of another of the embodiments three of the first cleaning agent storage member of the present application;

[0033] Figure 9is another structure schematic view of another case of the third embodiment of the first cleaning agent storage member of the utility model.

[0034] LIST OF REFERENCE NUMERALS

[0035] 1, water inlet main road;11, water inlet valve;12, booster pump;2, reverse osmosis membrane filter core;21, waste water outlet pipe;211, waste water valve;311, first cleaning pipe;312, first cleaning valve;313, first cleaning agent storage member;31301, liquid inlet;31302, liquid outlet;3131, shell;3132, cavity;31321, first chamber;31322, second chamber;3133, feeding port;3134, plugging piece;3135, water passage;3136, opening;3137, cleaning agent;3138, grip part;31391, filter screen;31392, blowdown port;31393, door;31394, liquid outlet pipe;31395, liquid inlet pipe;321, second cleaning pipe;322, second cleaning valve;323, second cleaning agent storage member;331, first check member;332, second check member;4, pre-filter unit;5, pure water outlet pipe;51, pure water member;6, circulating pump;7, flow control member;8, dirt collection member;9, protection member. DETAILED DESCRIPTION

[0036] The preferred embodiments of the utility model are described below with reference to the drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the utility model, and are not intended to limit the protection scope of the utility model.

[0037] It should be noted that in the description of the utility model, the terms "upper", "lower", "inner", "outer" and the like indicate the direction or positional relationship of the terms based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and is not intended to indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0038] In addition, it should also be noted that in the description of the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "setting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0039] As Figures 1 to 4The water purification equipment includes a water inlet main path 1, a reverse osmosis membrane filter core 2 and a cleaning assembly.

[0040] The cleaning assembly includes a first cleaning module and a second cleaning module, wherein the first cleaning module is used for storing a first cleaning agent 3137, a water inlet end of the first cleaning module is communicated with a waste water end of the reverse osmosis membrane filter core 2, a water outlet end of the first cleaning module is communicated with a water inlet end of the reverse osmosis membrane filter core 2, the second cleaning module is used for storing a second cleaning agent, a water inlet end of the second cleaning module is communicated with a pure water end of the reverse osmosis membrane filter core 2, and a water outlet end of the second cleaning module is communicated with the water inlet end of the reverse osmosis membrane filter core 2.

[0041] The water inlet end of the reverse osmosis membrane filter core 2 and the waste water end of the reverse osmosis membrane filter core 2 are sequentially communicated to form a cleaning loop, and the water purification equipment is arranged to be capable of driving liquid in the cleaning loop to circulate and flow.

[0042] Through the above arrangement, the water inlet end of the first cleaning module is directly communicated with the waste water end of the reverse osmosis membrane filter core 2, the water outlet end of the first cleaning module is communicated with the water inlet end of the reverse osmosis membrane filter core 2, the water inlet end of the reverse osmosis membrane filter core 2 and the waste water end of the reverse osmosis membrane filter core 2 are sequentially communicated to form a cleaning loop, the reverse osmosis membrane filter core 2 can be circularly flushed, and the cleaning effect of the reverse osmosis membrane filter core 2 is improved, the circulation pipe is not additionally arranged, the pipeline connection is simplified, and the cost of the water purification equipment is reduced, the second cleaning module is arranged to be communicated with the pure water end of the reverse osmosis membrane filter core 2, the cleaning agent in the second cleaning module is dissolved by using the pure water filtered by the reverse osmosis membrane filter core 2, the solubility of the cleaning agent is improved, after the cleaning of the second cleaning module is completed, the water at the pure water end of the reverse osmosis membrane filter core 2 is transported to the water inlet end of the reverse osmosis membrane filter core 2 to realize pure water backflow, the pure water containing a small amount of cleaning agent residues at the pure water end of the reverse osmosis membrane filter core 2 is backflowed to the water inlet end of the reverse osmosis membrane filter core 2, the pure water containing a small amount of cleaning agent residues is discharged after being filtered for multiple times, zero pollution and zero chemical addition are realized, the problem of high TDS value of the first cup of water is solved, the pure water backflow pipe is not additionally arranged, the pipeline connection is further simplified, in addition, after the cleaning of the first cleaning module is completed, the water at the waste water end of the reverse osmosis membrane filter core 2 is transported to the water inlet end of the reverse osmosis membrane filter core 2, the reverse osmosis membrane filter core 2 is circularly flushed, the flushing effect is improved, water is saved, and the use experience of a user is greatly improved.

[0043] It should be noted that in actual application, the specific setting type of the first cleaning module is not limited by those skilled in the art, for example, the first cleaning module can be set to include the first cleaning pipe 311, the first cleaning valve 312 arranged on the first cleaning pipe 311, and the first cleaning agent storage member 313 for storing the first cleaning agent 3137, the first cleaning valve 312 is located at the upstream end of the first cleaning agent storage member 313, or the first cleaning module can also be set to include only the cleaning agent storage member, wherein the water inlet end of the cleaning agent storage member is directly communicated with the wastewater end of the reverse osmosis membrane filter core 2, and the water outlet end of the cleaning agent storage member is directly communicated with the water inlet end of the reverse osmosis membrane filter core 2, and the like, and such adjustment and change of the specific setting type of the first cleaning module does not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0044] Preferably, as shown in Figures 1 to 4 the first cleaning module includes the first cleaning pipe 311, the first cleaning valve 312 arranged on the first cleaning pipe 311, and the first cleaning agent storage member 313 for storing the first cleaning agent 3137, the first cleaning valve 312 is located at the upstream end of the first cleaning agent storage member 313, the water inlet end of the first cleaning pipe 311 is communicated with the wastewater end of the reverse osmosis membrane filter core 2, and the water outlet end of the first cleaning pipe 311 is communicated with the water inlet main path 1.

[0045] It should be noted that the water outlet end of the first cleaning pipe 311 is not limited to being communicated with the water inlet main path 1, for example, the reverse osmosis membrane filter core 2 can also be arranged to have two water inlet openings, the water outlet end of the first cleaning pipe 311 is communicated with one of the water inlet openings, and the water inlet main path 1 is communicated with the other water inlet opening, and the like, and such flexible adjustment and change does not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application. Of course, preferably, the water outlet end of the first cleaning pipe 311 is communicated with the water inlet main path 1.

[0046] It should also be noted that in actual application, the solid cleaning agent can be stored in the first cleaning agent storage member 313, when the reverse osmosis membrane filter core 2 needs to be cleaned, the water flowing out of the wastewater end of the reverse osmosis membrane filter core 2 enters the first cleaning agent storage member 313, and the first cleaning agent 3137 stored in the first cleaning agent storage member 313 is dissolved to form a first cleaning liquid, or the first cleaning liquid can also be directly stored in the first cleaning agent storage member 313, and the like, and such adjustment and change of the material state of the cleaning agent in the first cleaning agent storage member 313 does not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0047] Preferably, the solid cleaning agent is stored in the first cleaning agent storage member 313, when the reverse osmosis membrane filter core 2 needs to be cleaned, the water flowing out of the waste water end of the reverse osmosis membrane filter core 2 enters the first cleaning agent storage member 313, and the first cleaning agent 3137 stored in the first cleaning agent storage member 313 is dissolved to form the first cleaning liquid.

[0048] Preferably, as shown in Figure 1 and Figure 3 The water purifying device further comprises a first check member 331, which is arranged on the first cleaning pipe 311 and used to prevent the water in the water inlet main path 1 from flowing reversely into the first cleaning agent storage member 313.

[0049] By arranging the first check member 331, the water in the water inlet main path 1 can be prevented from flowing reversely into the first cleaning agent storage member 313, so that the cleaning agent stored in the first cleaning agent storage member 313 can be prevented from being dissolved too early, thereby prolonging the storage time of the cleaning agent and preventing the cleaning agent from being agglomerated or crystallized.

[0050] It should be noted that, in actual application, the specific arrangement type of the second cleaning module is not limited by those skilled in the art, for example, the second cleaning module can be arranged to comprise a second cleaning pipe 321, a second cleaning valve 322 arranged on the second cleaning pipe 321 and a second cleaning agent storage member 323 used to store a second cleaning agent, the second cleaning valve 322 is located at the upstream end of the second cleaning agent storage member 323, or the second cleaning module can be arranged to only comprise the second cleaning agent storage member 323, wherein the water inlet end of the second cleaning agent storage member 323 is directly communicated with the waste water end of the reverse osmosis membrane filter core 2, and the water outlet end of the second cleaning agent storage member 323 is directly communicated with the water inlet end of the reverse osmosis membrane filter core 2, and the like, and the adjustment and change of the specific arrangement type of the second cleaning module do not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0051] Preferably, as shown in Figures 1 to 4 The second cleaning module comprises a second cleaning pipe 321, a second cleaning valve 322 arranged on the second cleaning pipe 321 and a second cleaning agent storage member 323 used to store a second cleaning agent, the second cleaning valve 322 is located at the upstream end of the second cleaning agent storage member 323, the water inlet end of the second cleaning pipe 321 is communicated with the pure water end of the reverse osmosis membrane filter core 2, and the water outlet end of the second cleaning pipe 321 is communicated with the water inlet main path 1.

[0052] It should be noted that, not limited to the second cleaning pipe 321 of the water outlet end is set to communicate with the inlet main road 1, for example, also can be set to have two water inlet reverse osmosis membrane filter core 2, the second cleaning pipe 321 of the water outlet end and one of the water inlets communicate, the inlet main road 1 and the other water inlet communicate, etc., this kind of flexible adjustment and change does not deviate from the principles and scope of the present application, should be included in the protection scope of the present application. Of course, preferably, the second cleaning pipe 321 of the water outlet end communicates with the inlet main road 1.

[0053] It should be noted that, in actual application, the solid cleaning agent can be stored in the second cleaning agent storage member 323, when the reverse osmosis membrane filter core 2 needs to be cleaned, the water flowing out of the waste water end of the reverse osmosis membrane filter core 2 enters the second cleaning agent storage member 323, and the second cleaning agent stored in the second cleaning agent storage member 323 is dissolved to form a second cleaning liquid, or the second cleaning liquid can be directly stored in the second cleaning agent storage member 323, etc. The adjustment and change of the material state of the cleaning agent in the second cleaning agent storage member 323 does not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0054] Preferably, the solid cleaning agent is stored in the second cleaning agent storage member 323, when the reverse osmosis membrane filter core 2 needs to be cleaned, the water flowing out of the waste water end of the reverse osmosis membrane filter core 2 enters the second cleaning agent storage member 323, and the second cleaning agent stored in the second cleaning agent storage member 323 is dissolved to form a second cleaning liquid.

[0055] Preferably, as shown in Figures 1 to 4 The water purification device further comprises a second check member 332, which is arranged on the second cleaning pipe 321 and is used to prevent the water in the inlet main road 1 from flowing backward into the second cleaning agent storage member 323.

[0056] By arranging the second check member 332, the water in the inlet main road 1 can be prevented from flowing backward into the second cleaning agent storage member 323, so that the cleaning agent stored in the second cleaning agent storage member 323 can be dissolved prematurely, thereby prolonging the storage time of the second cleaning agent and preventing the cleaning agent from caking and crystallizing.

[0057] It should be noted that in actual application, the first check member 331 and the second check member 332 can be both set as check valves, or the first check member 331 and the second check member 332 can be both set as control valves, or one of the first check member 331 and the second check member 332 can be set as a check valve and the other can be set as a control valve, and the like, and such adjustment and change of the specific setting type of the first check member 331 and the second check member 332 do not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0058] Preferably, the first check member 331 and the second check member 332 are both check valves.

[0059] It should be noted that it is not limited to setting the first check member 331 and the second check member 332 to prevent the cleaning agent from dissolving too early, for example, a check structure can also be provided on the first cleaning agent storage member 313 or the second cleaning agent storage member 323 to prevent the cleaning agent from dissolving too early, and the like, and such flexible adjustment and change do not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application. Of course, preferably, the first check member 331 and the second check member 332 are set to prevent the cleaning agent from dissolving too early.

[0060] It should be noted that in actual application, the present application does not make any limitation on the specific driving mode of the water purification equipment for driving the liquid circulation flow in the cleaning circuit. For example, a circulating pump 6 can be provided to drive the liquid circulation flow in the cleaning circuit by the circulating pump 6, or the liquid circulation flow in the cleaning circuit can be driven by the booster pump 12 of the water purification equipment, and the like, and such adjustment and change of the specific driving mode of the water purification equipment for driving the liquid circulation flow in the cleaning circuit do not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0061] The following two embodiments will be introduced.

[0062] Embodiment one:

[0063] As shown in Figure 1 and Figure 3 , the water purification equipment includes a booster pump 12 provided on the water inlet main path 1, the water outlet end of the first cleaning module is in communication with the water inlet main path 1 and located at the upstream end of the booster pump 12, and the booster pump 12 can drive the liquid circulation flow in the cleaning circuit.

[0064] By using the booster pump 12 to drive the liquid circulating flow in the cleaning circuit, the additional circulating pump 6 can be avoided, so that the cost of the water purification equipment can be further reduced, the pipeline connection in the water purification equipment can be further simplified, and the volume of the water purification equipment can be reduced.

[0065] Preferably, the booster pump 12 at least comprises a first voltage gear and a second voltage gear, and the booster pump 12 has a gear adjusting module for adjusting the voltage gear of the booster pump 12 to the second voltage gear when the water purification equipment is in the cleaning mode, wherein the voltage value of the second voltage gear is lower than the voltage value of the first voltage gear.

[0066] By such a setting, when the water purification equipment is in the cleaning mode, the booster pump 12 can be operated at a lower voltage gear, so that the water pressure of the cleaning liquid in the circulating process is lower, on the one hand, the cleaning liquid can be prevented from penetrating to the pure water end of the reverse osmosis membrane filter element 2, and the chemical residue can be reduced, and on the other hand, the damage of the cleaning liquid to the diaphragm in the booster pump 12 can be avoided.

[0067] It should be noted that the gear adjusting module can be arranged on the shell of the water purification equipment, and when the water purification equipment executes the cleaning mode, the user adjusts the gear of the booster pump 12 by operating the gear adjusting module, or the gear adjusting module can be communicatively connected with the controller of the water purification equipment to realize the automatic adjustment of the voltage gear of the booster pump 12, and the like, and such flexible adjustment and change do not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0068] Exemplarily, the gear adjusting module is communicatively connected with the controller of the water purification equipment to realize the automatic adjustment of the voltage gear of the booster pump 12.

[0069] Embodiment two:

[0070] As shown in Figure 2 and Figure 4 The water purification equipment further comprises a circulating pump 6 arranged on the cleaning circuit and used for driving the cleaning liquid to circulate in the cleaning circuit.

[0071] By such a setting, that is, by arranging the circulating pump 6 to drive the liquid circulating flow in the cleaning circuit, the use of the booster pump 12 to drive the cleaning liquid to circulate in the cleaning circuit can be avoided, on the one hand, the damage of the cleaning liquid to the diaphragm in the booster pump 12 can be avoided, so that the service life of the booster pump 12 can be prolonged, and on the other hand, compared with the form of using the booster pump 12 to drive the cleaning liquid to circulate in the cleaning circuit, since there is no high pressure, the cleaning liquid can be prevented from penetrating to the pure water end of the reverse osmosis membrane filter element 2, the chemical residue can be reduced, and the damage to the membrane sheet of the reverse osmosis membrane filter element 2 can be reduced.

[0072] It should be noted that the specific setting position of the circulating pump 6 on the cleaning circuit is not limited in the utility model, and the circulating pump 6 can only drive the cleaning liquid to circulate in the cleaning circuit.

[0073] In one specific embodiment, as shown in Figure 2 and Figure 4 , the circulating pump 6 is arranged on the first cleaning pipe 311.

[0074] In another specific embodiment, the circulating pump 6 is arranged on the water inlet main line 1 (not shown in the figure).

[0075] In another possible embodiment, the water inlet end of the first cleaning pipe 311 is communicated with the wastewater outlet pipe 21, and the circulating pump 6 is arranged on the wastewater outlet pipe 21 (not shown in the figure).

[0076] Preferably, as shown in Figure 2 and Figure 4 , the circulating pump 6 is arranged on the first cleaning pipe 311, and the water purification device further comprises a protection member 9 arranged between the circulating pump 6 and the water inlet main line 1 and capable of resisting the water pressure in the water inlet main line 1.

[0077] It should be noted that when the water purification device is in a normal water production mode, the water pressure in the water inlet main line 1 and the wastewater outlet pipe 21 is high due to the pressure boosting effect of the booster pump 12, and in order to reduce the cost and increase the efficiency, the circulating pump 6 is usually arranged as a water pump that is not resistant to high pressure, and the protection member 9 can avoid the problem of water leakage of the circulating pump 6 due to high pressure.

[0078] It should be noted that in actual application, the water outlet end of the first cleaning pipe 311 and the water outlet end of the second cleaning pipe 321 can be arranged to be communicated with the upstream end of the booster pump 12, or the water outlet end of the first cleaning pipe 311 and the water outlet end of the second cleaning pipe 321 can be arranged to be communicated with the downstream end of the booster pump 12, and the like, and such flexible adjustment and change do not deviate from the principles and scope of the utility model, and should be included in the protection scope of the utility model.

[0079] Preferably, the water outlet end of the first cleaning pipe 311 is communicated with the downstream end of the booster pump 12, so as to prevent the cleaning liquid flowing out of the first cleaning pipe 311 from flowing through the booster pump 12, thereby avoiding the corrosion of the diaphragm in the booster pump 12 by the cleaning liquid and prolonging the service life of the booster pump 12; and the water outlet end of the second cleaning pipe 321 is communicated with the upstream end of the booster pump 12, so as to facilitate the delivery of the pure water containing a small amount of cleaning agent residues to the upstream end of the booster pump 12 after the cleaning of the reverse osmosis membrane filter element 2 by the second cleaning module, so as to be delivered to the water inlet end of the reverse osmosis membrane filter element 2 after being pressurized by the booster pump 12.

[0080] Preferably, the first cleaning agent storage member 313 is configured to allow water at the wastewater end of the reverse osmosis membrane filter core 2 to flow to the water inlet end of the reverse osmosis membrane filter core 2 when it is in the first working mode, and to deliver cleaning liquid to the reverse osmosis membrane filter core 2 when it is in the second working mode.

[0081] It should be noted that the first working mode is a mode of operation other than the cleaning mode, such as a water production mode or a flushing mode, and the second working mode is a mode of cleaning the reverse osmosis membrane filter core 2 using the first cleaning agent 3137 in the first cleaning agent storage member 313.

[0082] With such a configuration, on the one hand, when the reverse osmosis membrane filter core 2 does not need to be cleaned using the cleaning agent in the first cleaning agent storage member 313, water at the wastewater end of the reverse osmosis membrane filter core 2 can be allowed to flow to the water inlet end of the reverse osmosis membrane filter core 2, thereby enabling the reverse osmosis membrane filter core 2 to be flushed in a cycle, improving the flushing efficiency of the reverse osmosis membrane filter core 2; on the other hand, when the reverse osmosis membrane filter core 2 needs to be cleaned using the cleaning agent in the first cleaning agent storage member 313, cleaning liquid can be delivered to the reverse osmosis membrane filter core 2, thereby enabling the first cleaning module to both clean the reverse osmosis membrane filter core 2 and flush the reverse osmosis membrane filter core 2 in a cycle, further saving parts of the water purification equipment and reducing the cost of the water purification equipment.

[0083] Preferably, the second cleaning agent storage member 323 is configured to allow water at the pure water end of the reverse osmosis membrane filter core 2 to flow to the water inlet end of the reverse osmosis membrane filter core 2 when it is in the first working mode, and to deliver cleaning liquid to the water inlet end of the reverse osmosis membrane filter core 2 when it is in the second working mode.

[0084] It should be noted that the first working mode is a mode of operation other than the cleaning mode, such as a water production mode or a flushing mode, and the second working mode is a mode of cleaning the reverse osmosis membrane filter core 2 using the second cleaning agent in the second cleaning agent storage member 323.

[0085] By such an arrangement, on the one hand, when the reverse osmosis membrane filter core 2 does not need to be cleaned by the cleaning agent in the second cleaning agent storage member 323, the pure water end of the reverse osmosis membrane filter core 2 can be allowed to deliver water to the water inlet end of the reverse osmosis membrane filter core 2, to achieve pure water backflow, solve the problem of high TDS value of the "first cup of water" caused by long-term non-use of the water purification equipment, and in addition, after the cleaning of the reverse osmosis membrane filter core 2 by the cleaning agent is completed, the water containing the cleaning agent at the pure water end of the reverse osmosis membrane filter core 2 can be backflowed to the water inlet end of the reverse osmosis membrane filter core 2, which helps to achieve zero pollution and zero chemical residue, on the other hand, when the reverse osmosis membrane filter core 2 needs to be cleaned by the cleaning agent in the second cleaning agent storage member 323, the cleaning liquid can be delivered to the water inlet end of the reverse osmosis membrane filter core 2, so as to facilitate the cleaning of the reverse osmosis membrane filter core 2 by the second cleaning agent, that is, by arranging the second cleaning module, the reverse osmosis membrane filter core 2 can be cleaned and pure water backflow can be achieved, further saving the parts of the water purification equipment and further reducing the cost of the water purification equipment.

[0086] It should be noted that in actual application, the specific structure of the first cleaning agent storage member 313 and the second cleaning agent storage member 323 is not limited.

[0087] The following will be described in detail in combination with the first cleaning agent storage member 313 as an example and in combination with the following two cases.

[0088] Case 1:

[0089] As shown in Figure 5 The first cleaning agent storage member 313 includes a shell 3131, the shell 3131 has a cavity 3132 therein, and the shell 3131 is provided with a cleaning agent feeding port 3133 in communication with the cavity 3132, and the cleaning agent can be fed into the cavity 3132 through the feeding port 3133 when the first cleaning agent storage member 313 is in the second working state.

[0090] When the first cleaning module does not need to clean the reverse osmosis membrane filter core 2, no cleaning agent is fed into the cavity 3132, at this time, the first cleaning agent storage member 313 is equivalent to a section of passage, which can allow the water at the wastewater end of the reverse osmosis membrane filter core 2 to flow to the water inlet end of the reverse osmosis membrane filter core 2, and when the first cleaning module needs to clean the reverse osmosis membrane filter core 2, the user feeds the cleaning agent into the cavity 3132 through the feeding port 3133, the water at the wastewater end of the reverse osmosis membrane filter core 2 dissolves the cleaning agent after entering the cavity 3132 through the liquid inlet 31301, to form a cleaning liquid, and then the cleaning liquid is delivered to the reverse osmosis membrane filter core 2 through the liquid outlet 31302 to clean the reverse osmosis membrane filter core 2.

[0091] Case 2:

[0092] AsFigure 6 As shown, the first cleaning agent storage member 313 comprises a housing 3131 and a blocking member 3134, the housing 3131 has a water passing channel 3135 and a cavity 3132 therein, the cavity 3132 has an opening 3136, and the blocking member 3134 is arranged at the opening 3136 and can open or close the opening 3136.

[0093] By such arrangement, the cleaning agent can be stored in the first cleaning agent storage member 313 in advance, when the first cleaning module is not needed to clean the reverse osmosis membrane filter core 2, the blocking member 3134 closes the opening 3136, so that the water passing channel 3135 and the cavity 3132 are not communicated, at this time, the water in the water inlet main line 1 can pass through the water passing channel 3135 and enter the water inlet end of the reverse osmosis membrane filter core 2, when the first cleaning module is needed to clean the reverse osmosis membrane filter core 2, the blocking member 3134 opens the opening 3136, so that the water passing channel 3135 and the cavity 3132 are communicated, the water in the water inlet main line 1 enters the water passing channel 3135 through the liquid inlet 31301, and enters the cavity 3132 through the opening 3136 to dissolve the cleaning agent stored in the cavity 3132 to form a cleaning liquid, and then the cleaning liquid flows out through the liquid outlet 31302 and is delivered into the reverse osmosis membrane filter core 2 to clean the reverse osmosis membrane filter core 2.

[0094] Preferably, as shown in the drawings, Figure 6 Preferably, as shown in the drawings,

[0095] It should be noted that, although the first cleaning agent storage member 313 is taken as an example for introduction, this is not restrictive, and the specific structure of the first cleaning agent storage member 313 is also applicable to the second cleaning agent storage member 323.

[0096] It should be noted that, in actual application, the type of the cleaning agent in the first cleaning agent storage member 313 and the second cleaning agent storage member 323 is not limited, for example, the cleaning agent can be set as an acidic cleaning agent, or the cleaning agent can be set as an alkaline cleaning agent, or the cleaning agent can be set as an oxidizing cleaning agent, etc., and such adjustment and change of the type of the cleaning agent does not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0097] Preferably, the first cleaning agent storage member 313 is used for storing an acidic cleaning agent, and the second cleaning agent storage member 323 is used for storing an alkaline cleaning agent.

[0098] It should be noted that the specific type of the acidic cleaning agent is not limited in the utility model, for example, the acidic cleaning agent can be set as at least one of malic acid, citric acid, hydrochloric acid and phosphoric acid, of course, the acidic cleaning agent can also be other types of acidic cleaning agent, and the person skilled in the art can adjust according to actual needs.

[0099] Preferably, the acidic cleaning agent is malic acid or citric acid, which has good disinfection and bacteriostasis effect while cleaning dirt, and can disinfect and sterilize the reverse osmosis membrane filter element 2.

[0100] It should be further noted that the specific type of the alkaline cleaning agent is not limited in the utility model, for example, the alkaline cleaning agent can be set as at least one of dishwashing powder, soda, baking soda, sodium hydroxide, potassium hydroxide, calcium hydroxide, calcium oxide, sodium citrate, ethylenediaminetetraacetic acid tetrasodium, sodium dodecyl sulfate, sodium disulfite and sodium bisulfite, of course, the alkaline cleaning agent can also be other types of alkaline cleaning agent, and the person skilled in the art can adjust according to actual needs.

[0101] It should be further noted that the specific type of the alkaline cleaning agent is not limited in the utility model, for example, the alkaline cleaning agent can be set as at least one of dishwashing powder, soda, baking soda, sodium hydroxide, potassium hydroxide, calcium hydroxide, calcium oxide, sodium citrate, ethylenediaminetetraacetic acid tetrasodium, sodium dodecyl sulfate, sodium disulfite and sodium bisulfite, of course, the alkaline cleaning agent can also be other types of alkaline cleaning agent, and the person skilled in the art can adjust according to actual needs.

[0102] Preferably, the cleaning agent stored in the first cleaning agent storage member 313 and the second cleaning agent storage member 323 is in solid form. Further preferably, in order to accelerate the dissolution of the cleaning agent, the cleaning agent is in granular or powder form.

[0103] Preferably, the first cleaning module further has a collection cavity, and the water purification equipment is arranged to be capable of collecting dirt in the cleaning loop into the collection cavity.

[0104] Through such an arrangement, when the reverse osmosis membrane filter element 2 is cleaned, the dirt cleaned from the reverse osmosis membrane filter element 2 can be collected into the collection cavity when the cleaning liquid circulates in the cleaning loop, so as to avoid the dirt cleaned from re-entering the reverse osmosis membrane filter element 2, thereby preventing secondary pollution to the reverse osmosis membrane filter element 2, and at the same time, when the reverse osmosis membrane filter element 2 is flushed, the dirt flushed from the reverse osmosis membrane filter element 2 can also be collected into the collection cavity, thereby improving the flushing effect.

[0105] It should be noted that the specific collection mode of the collecting cavity for collecting dirt in the cleaning loop is not limited in the present application, and dirt in the cleaning loop can be collected into the collecting cavity.

[0106] In one embodiment, the water purification device further comprises a dirt collecting member 8, which is arranged on the cleaning loop and a collecting cavity is formed in the dirt collecting member 8, and dirt in the cleaning loop can be collected into the collecting cavity.

[0107] It should be noted that the dirt collecting member 8 can be arranged on the first cleaning pipe 311, or the dirt collecting member 8 can be arranged on the wastewater outlet pipe 21, and the like, and the adjustment and change of the specific arrangement position of the dirt collecting member 8 do not deviate from the principle and scope of the present application, and should be included in the protection scope of the present application.

[0108] Preferably, the dirt collecting member 8 is arranged on the wastewater outlet pipe 21, so that dirt in the water flowing out of the wastewater end of the reverse osmosis membrane filter core 2 can be collected into the collecting cavity as soon as possible.

[0109] In another embodiment, the first cleaning agent storage member 313 has a containing cavity 3132, a collecting cavity is formed in the containing cavity 3132, and the first cleaning agent storage member 313 is arranged to store cleaning agent in the containing cavity 3132 when it is in the first working state and to collect dirt in the cleaning loop into the collecting cavity when it is in the second working state.

[0110] Through such an arrangement, the containing cavity 3132 in the first cleaning agent storage member 313 can be used as a dirt collecting cavity, so that the space in the first cleaning agent storage member 313 can be fully utilized, and the dirt collecting member 8 does not need to be arranged additionally, further simplifying the pipeline connection of the water purification device and reducing the cost of the water purification device.

[0111] Specifically, the first cleaning agent storage member 313 comprises a shell 3131 and a filter screen 31391, the shell 3131 has a containing cavity 3132, the filter screen 31391 is arranged in the shell 3131 and separates the containing cavity 3132 into a first chamber 31321 and a second chamber 31322, a collecting cavity is formed in the second chamber 31322, cleaning agent can be stored in the first chamber 31321 and / or the second chamber 31322 when the first cleaning agent storage member 313 is in the first working state, and the filter screen 31391 can collect dirt in the cleaning loop into the second chamber 31322 when the first cleaning agent storage member 313 is in the second working state.

[0112] Specifically, as shown in FIG. 1, the first cleaning agent storage member 313 is arranged on the wastewater outlet pipe 21, and the containing cavity 3132 is formed in the first cleaning agent storage member 313. Figure 7As shown in the figure, the first cleaning agent storage member 313 has an inlet 31301 and an outlet 31302, the inlet 31301 and the outlet 31302 are located on both sides of the filter member 3307 respectively, the inlet 31301 communicates with the second chamber 31322, the outlet 31302 communicates with the first chamber 31321, the dirt enters the second chamber 31322 with the cleaning liquid, the cleaning liquid can enter the first chamber 31321, and the dirt is intercepted in the second chamber 31322.

[0113] As shown in the figure, Figure 8 As shown in the figure, the first cleaning agent storage member 313 has an inlet 31301 and an outlet 31302, the filter screen 31391 divides the cavity 3132 into the first chamber 31321 and the second chamber 31322, the inlet 31301 communicates with the second chamber 31322, one end of the outlet pipe 31394 extends into the first chamber 31321, the other end of the outlet pipe 31394 forms the outlet 31302, the dirt enters the first chamber 31321 with the cleaning liquid from the inlet 31301, the cleaning liquid can enter the second chamber 31321, and the dirt is intercepted in the second chamber 31322.

[0114] As shown in the figure, Figure 9 As shown in the figure, the first cleaning agent storage member 313 has an inlet 31301 and an outlet 31302, the filter screen 31391 divides the cavity 3132 into the first chamber 31321 and the second chamber 31322, the inlet 31301 communicates with the second chamber 31322, one end of the outlet pipe 31394 extends into the first chamber 31321, the other end of the outlet pipe 31394 forms the outlet 31302, the dirt enters the first chamber 31321 with the cleaning liquid from the inlet 31301, the cleaning liquid can enter the second chamber 31321, and the dirt is intercepted in the second chamber 31322.

[0115] Preferably, the shell 3131 is further provided with a dirt outlet 31392 and a bin door 31393, the dirt outlet 31392 communicates with the collection cavity, and the bin door 31393 can open or close the dirt outlet 31392.

[0116] Through such a design, after the reverse osmosis membrane filter core 2 is cleaned, the bin door 31393 can be easily opened, and the dirt collected in the collection cavity can be cleaned out through the dirt outlet 31392, so as to avoid breeding bacteria and further improve the user's experience.

[0117] It should be noted that the water purification equipment of the utility model can also periodically flush the reverse osmosis membrane filter core 2 through the cleaning circuit, that is, the water in the water inlet main circuit 1 flows into the water inlet end of the reverse osmosis membrane filter core 2, then flows out from the wastewater end of the reverse osmosis membrane filter core 2, and finally is delivered to the water inlet end of the reverse osmosis membrane filter core 2 through the cleaning circuit, realizing the circulation flushing, and greatly improving the flushing effect on the reverse osmosis membrane filter core 2.

[0118] Preferably, as shown in the utility model, the water purification equipment further comprises a flow control member 7, wherein the flow control member 7 is arranged on the cleaning circuit and is used for controlling the water flow from the wastewater end of the reverse osmosis membrane filter core 2 to the water inlet end of the reverse osmosis membrane filter core 2. Figures 1 to 4

[0119] By arranging the flow control member 7, the water flow from the wastewater end of the reverse osmosis membrane filter core 2 to the water inlet end of the reverse osmosis membrane filter core 2 can be controlled, when the water purification equipment is in the normal water production mode, the water amount of the wastewater after being filtered through the reverse osmosis membrane filter core 2 and then flowing back to the water inlet end of the reverse osmosis membrane filter core 2 can be adjusted, and the wastewater recovery rate is controlled, on the one hand, the waste of water resources caused by the too low wastewater recovery rate can be avoided, and on the other hand, the service life of the reverse osmosis membrane filter core 2 caused by the too high wastewater recovery rate can also be avoided.

[0120] It should be noted that the flow control member 7 can be arranged as a wastewater ratio, or can also be arranged as a proportional valve, or can also be arranged as a water blocking block with a water passing hole, and the like, the adjustment and change of the specific arrangement type of the flow control member 7 do not deviate from the principles and ranges of the utility model, and should be included in the protection range of the utility model.

[0121] Preferably, the flow control member 7 is a wastewater ratio.

[0122] It should be noted that in actual application, the person skilled in the art can arrange the flow control member 7 on the first cleaning pipe 311, or can also arrange the flow control member 7 on the water inlet main circuit 1, and the like, the adjustment and change of the specific arrangement position of the flow control member 7 on the cleaning circuit do not deviate from the principles and ranges of the utility model, and should be included in the protection range of the utility model.

[0123] Preferably, the flow control member 7 is arranged on the first cleaning pipe 311.

[0124] Preferably, the water purification equipment of the utility model further comprises an auxiliary cleaning member (not shown in the figure), and the auxiliary cleaning member is arranged to promote the action of the cleaning liquid and the dirt on the reverse osmosis membrane filter core 2, so as to remove the dirt from the reverse osmosis membrane filter core 2.

[0125] ​By setting the auxiliary cleaning member, the physical or chemical action of the cleaning liquid on the dirt on the reverse osmosis membrane filter core 2 can be facilitated, thereby facilitating the removal of the dirt from the reverse osmosis membrane filter core 2, further improving the cleaning efficiency and cleaning effect of the reverse osmosis membrane filter core 2, and further improving the user experience.

[0126] It should be noted that in actual application, the specific setting type of the auxiliary cleaning member is not limited in the utility model, as long as the cleaning liquid can act on the dirt on the reverse osmosis membrane filter core 2 to remove the dirt from the reverse osmosis membrane filter core 2.

[0127] In one specific embodiment, the auxiliary cleaning member comprises a heating module, wherein the heating module is arranged on the cleaning circuit.

[0128] By such a setting, the hot cleaning liquid is delivered into the reverse osmosis membrane filter core 2, which can facilitate the action of the cleaning liquid on the dirt on the reverse osmosis membrane filter core 2, thereby facilitating the removal of the dirt; in addition, by setting the heating module, the dissolution of the cleaning agent can also be facilitated, thereby improving the dissolution speed and solubility of the cleaning agent, and further improving the user experience.

[0129] It should be noted that the specific setting position of the heating module on the cleaning circuit is not limited in the utility model, for example, the heating module can be arranged on the cleaning pipeline, or the heating module can also be arranged on the circulating pipe, or the heating module can also be arranged outside the cleaning agent storage member, and the like, and the adjustment and change of the specific setting position of the heating module do not deviate from the principles and scope of the utility model, and should be included in the protection scope of the utility model.

[0130] In another specific embodiment, the auxiliary cleaning member comprises an ultrasonic module, wherein the ultrasonic module is arranged outside the reverse osmosis membrane filter core 2 and can cause high-frequency low-amplitude vibration of the reverse osmosis membrane filter core 2, thereby facilitating the removal of the dirt on the reverse osmosis membrane filter core 2.

[0131] In another specific embodiment, the auxiliary cleaning member comprises a bubble generator, wherein the bubble generator can generate bubbles, and the bubbles can facilitate the action of the cleaning liquid on the dirt on the reverse osmosis membrane filter core 2, thereby facilitating the removal of the dirt.

[0132] Preferably, as shown in Figures 1 to 4 The water purification equipment of the utility model further comprises a pre-filtering unit 4, the water outlet end of the pre-filtering unit 4 is in communication with the water inlet main circuit 1, and the water outlet end of the first cleaning module and / or the water outlet end of the second cleaning module is located at the downstream end of the pre-filtering unit 4.

[0133] Through the arrangement, the clean water filtered by the pre-filtering unit 4 can enter the reverse osmosis membrane filter core 2, and the first cleaning agent is dissolved by the clean water filtered by the pre-filtering unit 4, so that the solubility of the first cleaning agent and the cleaning degree of the cleaning liquid are improved, thereby effectively improving the cleaning effect of the reverse osmosis membrane filter core 2, and the first cleaning liquid or the second cleaning liquid can be prevented from flowing through the pre-filtering unit 4 to avoid the cleaning agent remaining in the pre-filtering unit 4.

[0134] It should be noted that in actual application, the pre-filtering unit 4 can be arranged as a pre-filtering filter core, or the pre-filtering unit 4 can be arranged as a composite filter core including a pre-filtering filter core and a post-filtering filter core, and the like, and the adjustment and change of the specific type of the pre-filtering unit 4 do not deviate from the principles and ranges of the present application, and should be included in the protection range of the present application.

[0135] Preferably, the pre-filtering unit 4 is a pre-filtering filter core.

[0136] Preferably, as shown in Figures 1 to 4 The water purification device further includes a pure water outlet pipe 5 and a pure water water member 51, the pure water water member 51 is in communication with the pure water end of the reverse osmosis membrane filter core 2 through the pure water outlet pipe 5, and the pure water water member 51 is used to output the water at the pure water end of the reverse osmosis membrane filter core 2 for the user to drink.

[0137] It should be noted that in actual application, the pure water water member 51 can be directly arranged as a water outlet member (such as a faucet or a water outlet nozzle), the filtered pure water flows out of the faucet or the water outlet nozzle for the user to use, or the pure water water member 51 can be arranged as a post-filtering filter core, the filtered pure water flows into the post-filtering filter core to improve the taste for the user to use, or the pure water water member 51 can be arranged as a pure water tank, the pure water filtered by the reverse osmosis membrane filter core 2 flows into the pure water tank for storage for the user to use, and the like, and the adjustment and change of the specific arrangement type of the pure water water member 51 do not deviate from the principles and ranges of the present application, and should be included in the protection range of the present application.

[0138] Preferably, the pure water water member 51 is a post-filtering filter core.

[0139] Preferably, as shown in Figures 1 to 4 The water purification device of the present application further includes a water inlet valve 11 arranged on the water inlet main path 1, and the water inlet valve 11 is used to control the opening and closing of the water inlet main path 1.

[0140] It should be noted that in actual application, the water purification equipment can be set as a water purifier, or can be set as a water and drink integrated machine, or can be set as any other possible type, and the adjustment and change of the specific setting type of the water purification equipment do not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0141] Exemplarily, the water purification equipment is a water purifier.

[0142] The working process of the water purification equipment of the present application will be introduced in detail in combination with the following cases.

[0143] Case 1:

[0144] The water purification equipment is in a normal water production mode: the water inlet valve 11 is opened, the first cleaning valve 312 and the second cleaning valve 322 are closed, the water source is transported into the reverse osmosis membrane filter core 2 after being filtered by the pre-filter core 4 and then by the water inlet main line 1, the pure water filtered by the reverse osmosis membrane filter core 2 flows to the pure water water-using member 51 through the pure water outlet pipe 5 for the user to use, and the waste water produced by the filtration is discharged through the waste water outlet pipe 21.

[0145] In addition, part of the waste water produced by the filtration can also be returned to the water inlet end of the reverse osmosis membrane filter core 2 by means of the first cleaning pipe 311 to realize waste water return, and at the same time, the waste water return amount can be adjusted by the flow control member 7 to improve the utilization rate of the water source and the service life of the reverse osmosis membrane filter core 2.

[0146] Case 2:

[0147] The first cleaning agent reverse osmosis membrane filter core 2 cleaning mode: the water inlet valve 11 and the first cleaning valve 312 are opened, the second cleaning valve 322 is closed, the water source is transported into the reverse osmosis membrane filter core 2 after being filtered by the pre-filter core 4 and then by the water inlet main line 1, and then enters the first cleaning agent storage member 313 through the waste water end of the reverse osmosis membrane filter core 2 (since the reverse osmosis membrane filter core 2 does not produce water normally, the water entering the first cleaning agent storage member 313 is not waste water produced by filtration), the first cleaning agent is dissolved to form a first cleaning liquid, the first cleaning liquid is transported into the reverse osmosis membrane filter core 2, and the dirt on the reverse osmosis membrane filter core 2 is cleaned, the cleaned dirt is transported again to the water inlet end of the reverse osmosis membrane filter core 2 along with the first cleaning liquid through the first cleaning pipe 311, and is washed by multiple cycles.

[0148] When the dirt cleaned from the reverse osmosis membrane filter core 2 circulates in the cleaning loop along with the first cleaning liquid, the dirt collecting member 8 collects the dirt to prevent the dirt from entering the reverse osmosis membrane filter core 2 again to cause secondary pollution, and after the cleaning is completed, the cleaning liquid is discharged from the waste water outlet pipe 21.

[0149] Case 3:

[0150] After the first cleaning agent cleans the reverse osmosis membrane filter core 2, the second cleaning agent cleans the reverse osmosis membrane filter core 2: open the water inlet valve 11 and the second cleaning valve 322, close the first cleaning valve 312, open the booster pump 12, and the water filtered by the pre-filter core 4 flows into the reverse osmosis membrane filter core 2, and the pure water filtered by the reverse osmosis membrane filter core 2 flows into the second cleaning pipe 321 and flows into the second cleaning agent storage member 323 to dissolve the second cleaning agent to form a second cleaning liquid, the second cleaning liquid is transported into the reverse osmosis membrane filter core 2, at this time the reverse osmosis membrane filter core 2 is stopped to clean the reverse osmosis membrane filter core 2, and then the dirt cleaned is discharged with the second cleaning liquid through the second cleaning pipe 32, the first cleaning valve 312 is opened, and the second cleaning liquid circulates in the cleaning circuit to circulate and flush the reverse osmosis membrane filter core 2, and after cleaning, the second cleaning liquid is discharged from the wastewater outlet pipe 21.

[0151] Case 4:

[0152] Pure water backflow mode: After the first cleaning agent or the second cleaning agent is used to clean the reverse osmosis membrane filter core 2, a small amount of cleaning agent penetrates into the pure water end of the reverse osmosis membrane filter core 2, the backflow valve 231 is opened, and the water at the pure water end of the reverse osmosis membrane filter core 2 is transported to the water inlet end of the reverse osmosis membrane filter core 2, and the pure water containing a small amount of cleaning agent is discharged after multiple filtrations.

[0153] Pure water discharge mode: After the first cleaning agent or the second cleaning agent is used to clean the reverse osmosis membrane filter core 2, the drain valve 221 is opened, and the water at the pure water end of the reverse osmosis membrane filter core 2 is transported to the wastewater outlet pipe 21 through the drain pipe 22, and the pure water containing a small amount of cleaning agent is discharged.

[0154] So far, the technical scheme of the present application has been described in combination with the preferred embodiments shown in the drawings, but those skilled in the art can easily understand that the protection scope of the present application is obviously not limited to these specific embodiments. Without deviating from the principles of the present application, those skilled in the art can make equivalent changes or replacements to related technical features, and the technical schemes after these changes or replacements will fall within the protection scope of the present application.

Claims

1. A water purification device, characterized in that, The water purification equipment includes: Reverse osmosis membrane filter element (2); The main inlet channel (1) is connected to the inlet end of the reverse osmosis membrane filter element (2) and is used to supply water to the reverse osmosis membrane filter element (2); and The cleaning assembly includes a first cleaning module and a second cleaning module. The first cleaning module is used to store a first cleaning agent (3137). The inlet of the first cleaning module is connected to the wastewater end of the reverse osmosis membrane filter element (2), and the outlet of the first cleaning module is connected to the inlet of the reverse osmosis membrane filter element (2). The second cleaning module is used to store a second cleaning agent. The inlet of the second cleaning module is connected to the pure water end of the reverse osmosis membrane filter element (2), and the outlet of the second cleaning module is connected to the inlet of the reverse osmosis membrane filter element (2). The first cleaning module, the inlet end of the reverse osmosis membrane filter element (2), and the wastewater end of the reverse osmosis membrane filter element (2) are sequentially connected to form a cleaning circuit, and the water purification equipment is configured to drive the liquid circulation flow in the cleaning circuit.

2. The water purification equipment according to claim 1, characterized in that, The first cleaning module includes a first cleaning pipe (311), a first cleaning valve (312) disposed on the first cleaning pipe (311), and a first cleaning agent storage component (313). The first cleaning agent storage component (313) is used to store the first cleaning agent (3137). The first cleaning valve (312) is located at the upstream end of the first cleaning agent storage component (313). The inlet end of the first cleaning pipe (311) is connected to the wastewater end of the reverse osmosis membrane filter element (2), and the outlet end of the first cleaning pipe (311) is connected to the main inlet water line (1). And / or, the second cleaning module includes a second cleaning pipe (321), a second cleaning valve (322) disposed on the second cleaning pipe (321), and a second cleaning agent storage component (323). The second cleaning agent storage component (323) is used to store the second cleaning agent. The second cleaning valve (322) is located at the upstream end of the second cleaning agent storage component (323). The inlet end of the second cleaning pipe (321) is connected to the pure water end of the reverse osmosis membrane filter element (2), and the outlet end of the second cleaning pipe (321) is connected to the main inlet water line (1).

3. The water purification equipment according to claim 2, characterized in that, The water purification equipment also includes a first anti-reverse component (331), which is disposed on the first cleaning pipe (311) and is used to prevent water in the main water inlet (1) from flowing back into the first cleaning agent storage component (313); And / or, the water purification device further includes a second anti-reverse component (332), which is disposed on the second cleaning pipe (321) and is used to prevent water in the main water inlet (1) from flowing back into the second cleaning agent storage component (323).

4. The water purification equipment according to claim 2, characterized in that, The water purification equipment includes a booster pump (12) installed on the main water inlet (1). The outlet of the first cleaning module is connected to the main water inlet (1) and is located upstream of the booster pump (12). The booster pump (12) can drive the liquid circulation flow in the cleaning circuit.

5. The water purification equipment according to claim 4, characterized in that, The booster pump (12) includes at least a first voltage level and a second voltage level. The booster pump (12) has a level adjustment module. The level adjustment module is used to adjust the voltage level of the booster pump (12) to the second voltage level when the water purification equipment is in the cleaning mode. The voltage value of the second voltage level is lower than the voltage value of the first voltage level.

6. The water purification equipment according to claim 2, characterized in that, The water purification equipment also includes a circulation pump (6), which is installed on the cleaning circuit and is used to drive the liquid circulation flow in the cleaning circuit.

7. The water purification equipment according to claim 6, characterized in that, The circulating pump (6) is installed on the first cleaning pipe (311). The water purification equipment also includes a protective component (9). The protective component (9) is installed between the main water inlet (1) and the circulating pump (6) and can resist the water pressure in the main water inlet (1). And / or, the water purification device includes a booster pump (12), with the outlet of the first cleaning module and / or the outlet of the second cleaning module located downstream of the booster pump (12).

8. The water purification equipment according to claim 2, characterized in that, The first cleaning agent storage component (313) is configured to allow water from the wastewater end of the reverse osmosis membrane filter element (2) to flow to the inlet end of the reverse osmosis membrane filter element (2) when it is in a first working mode and to deliver the first cleaning liquid to the inlet end of the reverse osmosis membrane filter element (2) when it is in a second working mode. And / or, the second cleaning agent storage component (323) is configured to allow water flow from the pure water end of the reverse osmosis membrane filter element (2) to the water inlet end of the reverse osmosis membrane filter element (2) when it is in the first operating mode and to deliver a second cleaning liquid to the water inlet end of the reverse osmosis membrane filter element (2) when it is in the second operating mode. And / or, the first cleaning module has a collection chamber, and the water purification device is further configured to collect dirt in the cleaning circuit into the collection chamber.

9. The water purification equipment according to claim 8, characterized in that, The water purification equipment also includes a dirt collection component (8), which is disposed on the cleaning circuit and forms the collection cavity inside the dirt collection component, so that dirt in the cleaning circuit can be collected into the collection cavity; Alternatively, the first cleaning agent storage member (313) has a cavity (3132) in which the collection chamber is formed, the first cleaning agent storage member (3133) being configured to store the first cleaning agent (3137) in the cavity (3132) when it is in a first working state and to collect dirt in the cleaning circuit into the collection chamber when it is in a second working state.

10. The water purification equipment according to any one of claims 1 to 9, characterized in that, The water purification equipment also includes a flow control component (7), which is used to control the water flow rate from the wastewater end of the reverse osmosis membrane filter element (2) to the water inlet end of the reverse osmosis membrane filter element (2); And / or, the water purification device further includes an auxiliary cleaning component, which is configured to promote the interaction of a first cleaning agent (3137) and / or a second cleaning agent with the dirt on the reverse osmosis membrane filter element (2) to remove the dirt from the reverse osmosis membrane filter element (2); And / or, the water purification equipment further includes a pre-filter unit (4), the outlet of the pre-filter unit (4) is connected to the main water inlet (1), and the outlet of the first cleaning module and / or the outlet of the second cleaning module is located at the downstream end of the pre-filter unit (4). And / or, the water purification equipment further includes a pure water outlet pipe (5) and a pure water user component (51), and the pure water end of the reverse osmosis membrane filter element (2) is connected to the pure water user component (51) through the pure water outlet pipe (5).

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